/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb.db.mpp.plan.statement.sys.sync;

import org.apache.iotdb.commons.path.PartialPath;
import org.apache.iotdb.commons.sync.utils.SyncConstant;
import org.apache.iotdb.db.mpp.plan.analyze.QueryType;
import org.apache.iotdb.db.mpp.plan.statement.IConfigStatement;
import org.apache.iotdb.db.mpp.plan.statement.Statement;
import org.apache.iotdb.db.mpp.plan.statement.StatementType;
import org.apache.iotdb.db.mpp.plan.statement.StatementVisitor;

import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class CreatePipeStatement extends Statement implements IConfigStatement {

    private String pipeName;
    private String pipeSinkName;
    private long startTime;
    private Map<String, String> pipeAttributes;

    public CreatePipeStatement(StatementType createPipeStatement) {
        this.statementType = createPipeStatement;
    }

    public String getPipeName() {
        return pipeName;
    }

    public String getPipeSinkName() {
        return pipeSinkName;
    }

    public long getStartTime() {
        return startTime;
    }

    public Map<String, String> getPipeAttributes() {
        return pipeAttributes;
    }

    public void setPipeName(String pipeName) {
        this.pipeName = pipeName;
    }

    public void setPipeSinkName(String pipeSinkName) {
        this.pipeSinkName = pipeSinkName;
    }

    public void setStartTime(long startTime) {
        this.startTime = startTime;
    }

    public void setPipeAttributes(Map<String, String> pipeAttributes) {
        this.pipeAttributes = pipeAttributes;
    }

    @Override
    public QueryType getQueryType() {
        return QueryType.WRITE;
    }

    @Override
    public List<PartialPath> getPaths() {
        return Collections.emptyList();
    }

    @Override
    public <R, C> R accept(StatementVisitor<R, C> visitor, C context) {
        return visitor.visitCreatePipe(this, context);
    }

    public static CreatePipeStatement parseString(String parsedString) throws IOException {
        String[] split = parsedString.split(SyncConstant.PLAN_SERIALIZE_SPLIT_CHARACTER);
        if (split.length < 4) {
            throw new IOException("Parsing CreatePipePlan error. Attributes is less than expected.");
        }
        CreatePipeStatement statement = new CreatePipeStatement(StatementType.CREATE_PIPE);
        statement.setPipeName(split[0]);
        statement.setPipeSinkName(split[1]);
        statement.setStartTime(Long.parseLong(split[2]));
        int size = (Integer.parseInt(split[3]) << 1);
        if (split.length != (size + 4)) {
            throw new IOException("Parsing CreatePipePlan error. Attributes number is wrong.");
        }
        Map<String, String> attributes = new HashMap<>();
        for (int i = 0; i < size; i += 2) {
            attributes.put(split[i + 4], split[i + 5]);
        }
        statement.setPipeAttributes(attributes);
        return statement;
    }

    @Override
    public String toString() {
        StringBuilder builder = new StringBuilder();
        builder.append(pipeName).append(SyncConstant.PLAN_SERIALIZE_SPLIT_CHARACTER);
        builder.append(pipeSinkName).append(SyncConstant.PLAN_SERIALIZE_SPLIT_CHARACTER);
        builder.append(startTime).append(SyncConstant.PLAN_SERIALIZE_SPLIT_CHARACTER);
        builder.append(pipeAttributes.size()).append(SyncConstant.PLAN_SERIALIZE_SPLIT_CHARACTER);
        for (Map.Entry<String, String> entry : pipeAttributes.entrySet()) {
            builder.append(entry.getKey()).append(SyncConstant.PLAN_SERIALIZE_SPLIT_CHARACTER);
            builder.append(entry.getValue()).append(SyncConstant.PLAN_SERIALIZE_SPLIT_CHARACTER);
        }
        return builder.toString();
    }
}
